Title :
Digital sound recorder with ARM microcontroller and SD card
Author :
Mateski, S. ; Anastasovski, Z.
Author_Institution :
Inst. of Electron., Ss. Cyril & Methodius Univ. in Skopje, Skopje, Macedonia
Abstract :
This paper describes how to record, store and play back sound using ARM7 microcontroller LPC214x series with A/D converter and SD card. This paper shows in detail the usage of the A/D converter for signal processing, the Serial Peripheral Interface - SPI - for accessing the external SD card and the D/A converter for play back. Typical applications that would require one or more of these blocks are temperature loggers, telephone answering machines, or digital voice recorders.
Keywords :
analogue-digital conversion; audio recording; audio signal processing; digital-analogue conversion; memory cards; microcontrollers; peripheral interfaces; speech processing; A/D converter; ARM7 microcontroller; D/A converter; LPC214x series; SPI; digital sound recorder; digital voice recorders; external SD card; serial peripheral interface; signal processing; telephone answering machines; temperature loggers; Connectors; Data processing; Embedded systems; Microcontrollers; Phase locked loops; Programming; Time frequency analysis; ARM7 microcontroller; SD card; play back sound; record;
Conference_Titel :
Telecommunications Forum (TELFOR), 2012 20th
Conference_Location :
Belgrade
Print_ISBN :
978-1-4673-2983-5
DOI :
10.1109/TELFOR.2012.6419564
